发明名称 |
Crosslinked and crosslinkable hollow fiber membrane and method of making same |
摘要 |
A composition of and a method of making high performance hollow fiber membranes is described. The membranes have a high resistance to plasticization by use of a predetermined amount of crosslinking. The preferred polymer material for the membrane is a polyimide polymer comprising covalently bonded ester crosslinks. The resultant hollow fiber membrane exhibits a high permeability of CO<SUB>2 </SUB>in combination with a high CO<SUB>2</SUB>/CH<SUB>4 </SUB>selectivity. Another embodiment provides a method of making the hollow fiber membrane from a monesterified polymer followed by final crosslinking after hollow fiber formation.
|
申请公布号 |
US6932859(B2) |
申请公布日期 |
2005.08.23 |
申请号 |
US20020323091 |
申请日期 |
2002.12.18 |
申请人 |
UNIVERSITY OF TEXAS SYSTEM |
发明人 |
KOROS WILLIAM J.;WALLACE DAVID;WIND JOHN D.;MILLER STEPHEN J.;STAUDT-BICKEL CLAUDIA |
分类号 |
B01D53/22;B01D65/10;B01D67/00;B01D69/08;B01D71/64;B01D71/82;(IPC1-7):B01D53/22;B01D71/40 |
主分类号 |
B01D53/22 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|